We're currently implementing a 0.5 Ha SAF system, and just happen to be hosting a course on it this weekend. My wife & I did a PDC with Geoff Lawton a few years ago, acquired some land, did a SAF course, were blown away by the health and abundance of a young system nearby....  we knew we had to do the same.  We're also in the sub-tropics, but a little colder than you. Were get a couple of weeks of light frost in mid winter. 

 Nice! I knew there'd be other Bitcoiners looking at SAF. It just makes so much sense. 

I've pretty much planted out my first row & now I'm looking at my existing fruit trees & how I can plant some support trees for them.

I'm thinking I'll leverage ice cream bean a lot because I have a mature fruiting tree. The 2 fruit trees (jackfruit & Pomelo) either side of it are the healthiest on the property. 

Are you in the US?